A warehouse cage is a reusable foldable packaging container, similar in role to a pallet, but the steel wire-mesh body stacks three-dimensionally, doubles as a turnover box, and acts as a sales container. From years of shipments, Xintongnuo offers three buying tips. First, fix the cargo weight first. Cage load ratings vary widely, from 200 kg to 2000 kg. Send us your heaviest batch before ordering; we size the wire diameter and channel thickness to it. Second, do you need multi-layer stacking? Single-layer placement and three-to-four-layer stacking demand totally different structures; stacked cages need stacking feet and thicker channel. Say upfront whether you will stack. Third, do you need folding? We recommend folding whenever possible — empty cages fold flat, saving transport and storage. Heavy goods call for metal cages, heavy-duty cages, or metal pallet boxes; light goods suit ordinary cages or hollow-board cages.